Allen Johnson (born 1971) is a retired American hurdler.
Allen Kenneth Johnson is a retired American hurdling athlete who won the gold medal in the 110 metre hurdles at the 1996 Summer Olympics in Atlanta, Georgia. He is also a four-time world champion.
Allen Johnson may also refer to:
- Allen Johnson (historian) (1870–1931), American historian, Professor of History at Yale University
- Allen Johnson (Indian Army officer) (1829–1907), British Indian Army officer
- Allen F. Johnson American diplomat
- Allen Johnson (activist), African-American Civil Rights Leader and minister
Allen Johnson (1870–1931) was an American historian, teacher, biographer, and editor, most notably of the Dictionary of American Biography.
General Sir Allen Bayard Johnson was a senior British Indian Army officer who went on to be Military Secretary to the India Office.
Ambassador Allen F. Johnson was Chief Agricultural Negotiator in the Office of the United States Trade Representative from April 2001 until September 2005. He is currently CEO of Allen F. Johnson and Associates.
